tag	line	file	source code
msg_lrpid	32	include/linux/msg.h	ushort msg_lrpid;       /* last receive pid */
msg_lrpid	189	ipc/msg.c	msq->msg_lrpid = current->pid;
msg_lrpid	257	ipc/msg.c	msq->msg_lspid = msq->msg_lrpid = 0;